Testing Data in the U.S.
Tests for COVID-19
Viral tests tell you if you currently have an infection with SARS-CoV-2, the virus that causes COVID-19. A positive test result means you have an infection.
For more information on viral tests for COVID-19, see our Viral Testing page. https://www.cdc.gov/coronavirus/2019-ncov/testing/diagnostic-testing.html
Antibody blood tests, also called antibody tests, check your blood by looking for antibodies, which show if you had a previous infection with the virus.
For more information on antibody tests for COVID-19, see our Antibody Testing page. https://www.cdc.gov/coronavirus/2019-ncov/testing/serology-overview.html
CDC COVID Data Tracker https://www.cdc.gov/covid-data-tracker/index.html#cases